Method of securing together the component parts of metallic spools or reels and apparatus useful to this end



Nov. 17 1925- v R. H. BOWEN METHOD OF SECURING TOGETHER THE COMPONENTPARTS OF METALLIC SPOOLS OR REELS, AND APPARATUS USEFUL TO THIS ENDOriginal Filed Jan. 4, 1924 WITNESSES: INVENTOR: 1180mm,

BY I W A TORNEYS.

RUSSELL H. BOWEN, OF PH'ELADELPBIIA, PENNSYLVANIA, ASSEGNOR TO THE AMERLGAIN PULLEY COMPANY, OF PHlLADELPl-IIA, PENNSYLVANIA, A CORPORATION OFPENNEYLVANIA.

METHOD OF SECURING TOGETHER THE COMPONENT PARTS 0F METALLIC EPOULS 0RREELS AND APPARATUS UdElFUL T0 THIS END.

Application filed January 4, 1924:, Serial Ito. M4354. lteneweaSeptember 11, 1925.

To all whom it may concern:

Be it known that l, Rossnnn H. Bowen, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented 'certain new and useful improvements inMethods of Securing Together the Component Parts of Metallic Spools orHeels and Apparatus Useful to This End, whereof the following is aspecification, reference being had to the accompanyin drawings.

This invention is concerned with securing together the component partsof metal lic spools or reels oil the type wherein the barrel member isprovided with projections or tabs engaging in apertures of theopposite'end flange heads. In accordance with the usual method employedheretofore in accomplishing this purpose, the portions of the tab endsprojecting through the flange heads were upset or riveted by manualhammering, or by use of a power press to the together the componentparts of a spool or same end. This rocedure was often at tended bydistortion of the spool barrel especially in the case of spools-or reelsconstructed from comparatively thin sheet metal. I

The purpose of my invention is to over come the objection above pointedout, and this desideratum ll secure by heating the projections or tabssuihciently to permit of their being subsequently upset or spread byapplication of light pressure.

In the drawings, Fig. l is. a perspective view of the type of spool orreel to the assembling of which my invention is directed, one of the endflange heads being shown separated from the associated parts so as toavoid concealment of the charac teristic details of the structure.

Fig. H is an illustration in vertical sec tion showing more or lessdiagrammaticah ly, a typical embodiment of the apparatus of my inventionwith the spool or reel assemblage in place in readiness to be op" eratedupon; 1

Fig. lll shows, in end elevation, the appearance of the spool or reelafter its cont ponent parts have been permanently secured together inaccordance with my in vention; and Fig. IV is a detail. sectional viewon anenlarged scale taken as indicated by arrows llV-lV in Fig. lll. Thespool or reel shown in Fig. l of the drawings comprises a barrel member1, and separate end members or heads 5, 5. The barrel member 1 isfabricated from a sheet metal blank having integral short prolongationtabs 2 at intervals along opposite side edges, said blank being bent tocylindrical configuration WlllllltS ends meeting along a line 3. Theheads 5 are like-- wise struck from sheet metal," the edges of thecircular blanks from which they are formed being rolled to provideperipheral stifiening beads 6. Each head 5 has a concentric series ofapertures 7 designed to receive the tabs 2 of the-barrel member 1, andalso a circumferentially flanged cen tral aperture 8 so as to bemountable for dle.

The apparatus by aid of whichl secure reel such as described aboveincludes, as

illustrated in Figzll of the drawings, a-

metallic plate 10 that serves to support the spool reel assemblage invertical or end-on position with one of the heads 5 resting.

directly upon it. The upper face of the plate 10 is formed withconcentric circular relatively movable electrodes such as shown at is inthe illustration. The electrodes 1a are preferably made cylindrical withtheir rotation upon an appropriate axis or spinthe ends tapered as shownfor operation upon the tabs 2, and any suitable means may be providedfor their guidance and actuation placed as shown in Fig. ll and anelectrode J apparatus as illusinthe manner hereinafter noted. The elec--trio circu t previously referred to has interposed in it an appropriateswitch 15 for conl t in contact an exposed projecting tab tirel end 2,the switch 15 is closed. When the tab 2 has been heated to vthe extentof rendering the metal semi-molten, the switch 5 is opened to interceptfurther flow of current in the circuit,, and sufiicient pressure isthereupon applied to the electrode 14 to spread or upset the softenedmetal within and over the flared aperture 7 of the head 5, the result ofthis procedure being shown in Figs. III and IV, The final step in theoperation, it will be readily appreciated re quires application of butslight pressure as compared to the blow of a hammer or to the action ofa power press so that the possibility of distorting the barrel isenobviated. The shutting oii of the heating current before the upsettingpressure is applied not only avoids needless heating of the head 5 andconsequent risk of overheating and deformation, but also obviates riskof collapsing the spool end by excessive pressure of the electrode iscombined with over-prolonged heating When the tabs 2 at one end of thespool or reel 1 have been upset as just explained the assemblage isinverted upon the plate electrode 10 and the operation repeatedprecisely as before,

Having thus describedmy invention I claim:

l. The herein described method of as sembling an all metal spool or reelwhere n the barrel portion is provided with tabs engaging throughapertures of the end flangeheads, which consists in electricallynpsetting the protruding ends of the tabs by combined application ofheat and pres sure the protrudis softened,

heating curthe flange head members, the combination of a plate electrodefor supporting the spool or reel assemblage end-on, and an opposinelectrode movable into contact with the tabs projecting through theopposite end flange or head of said spool or ree at. In apparatus forsecuring together the component parts of a sheet metal spool or reelwherein the barrel portion is, provided with prolongation spuds engagingthrough flared apertures in the flange head members, the combination ofa plate electrode for supporting the spool or reel assemblage end-on,said plate electrode being concentrically recessed to accommodate aperipheral head of the near flange head and the aforesaid tabsprojecting therethrough, and

opposing electrode movable into contact with the tabs projecting throughthe opposite end flange head of the spool or reel.

In testimony whereof, I have hereunto signed my name at Philadelphia,Pennsyl- Vania this Q'Zth day of December 1928.

RUSSELL I BUWTEN.

